Home / 42,218.46-58,236.09-27,878.42

Finding the Fourth Proportional to 42,218.46, 58,236.09 and 27,878.42

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Solution

The fourth proportional to 42,218.46, 58,236.09 and 27,878.42 is: 38,455.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,218.46 : 58,236.09 = 27,878.42 : x
  2. Step 2: Convert to fraction form
    42,218.46/58,236.09 = 27,878.42/x
  3. Step 3: Cross multiply
    42,218.46x = 58,236.09 × 27,878.42
  4. Step 4: Simplify right side
    42,218.46x = 1,623,530,176.18
  5. Step 5: Solve for x
    x = 1,623,530,176.18/42,218.46
  6. Step 6: Final answer
    x = 38,455.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.